A study analyzed the yield stability and dry matter characteristics of super hybrid rice grown with different fertilizer rates in various locations. Two rice cultivars were tested in five sites in Hunan province. The harvest yield was highest in Guidong, with significant differences among locations. Dry matter accumulation and yield components varied by region. Fertilizer rates did not significantly impact yield. Positive correlations were found between yield and productive panicles, seed setting rate, and grain weight, while a negative correlation existed with spikelet number per panicle. Super hybrid rice thrives in suitable growing areas and can achieve high yields by increasing grain setting rate and weight.